blowmage

class TasksController < ApplicationController
  def update
    if @task.update_attributes(params[:task])
      tracker = PostSaveTaskTracker.new(@task)
      TaskPusher.new(tracker, socket_id).push_changes
      TaskMailSender.new(tracker, current_user).deliver_email
      # success response
    else
      # failure respond
    end

blowmage

class TasksController < ApplicationController
  def update
    if @task.update_attributes(params[:task])
      TaskPusher.new(@task, socket_id).push_changes
      TaskMailSender.new(@task, current_user).deliver_email
      # success response
    else
      # failure respond
    end
  end

ryanb

class TasksController < ApplicationController
  def update
    tracker = TaskTracker.new(@task)
    if @task.update_attributes(params[:task])
      TaskPusher.new(tracker, socket_id).push_changes
      TaskMailSender.new(tracker, current_user).deliver_email
      # success response
    else
      # failure respond
    end

nateware

1. Create the appropriate VPC that your application is going to live in. Create subnets for each availability zone you want to use.

2. Create VPC security group(s) for your auto-scaling instances. For example, if you're going to auto-scale web servers, create a "web" VPC security group.

3. Go into AWS console and create an ELB. Easy wizard. Select HTTP and (if needed) HTTPS. Make sure it's associated with the VPC you created in step 1.

4. Create an auto-scaling launch configuration from the CLI. The launch configuration has the AMI, size, and security group from step #2. The security group must be by ID not name ("sg-12345"):

      as-create-launch-config web --image-id ami-2e31bf1e --instance-type m1.medium \
   

-g sg-7619041a --key root

mattsoldo

-- Index hit rate
WITH idx_hit_rate as (
SELECT 
  relname as table_name, 
  n_live_tup,
  round(100.0 * idx_scan / (seq_scan + idx_scan),2) as idx_hit_rate
FROM pg_stat_user_tables
ORDER BY n_live_tup DESC
),

mlangenberg

namespace :log do
  desc "Downloads application logs to ./log/deploy/<RAILS_ENV>/<TIMESTAMP>/"
  task :fetch, :roles => :app do
      source = "#{shared_path}/log/#{rails_env}.log*"
      files_per_host = {}
      run "ls #{source}" do |channel, stream, data|
        files_per_host[channel[:host]] = data.split("\n")
      end

      destination = File.join('log', 'deploy')

deviantintegral

#!/usr/bin/env bash

# Compress MySQL tables on disk.
# Author: Andrew Berry, [email protected]
#
# Compress all tables in a MySQL InnoDB database using compression from the
# Barracuda table format. Tables have to already be in the Barracuda file
# format to actually compress tables, otherwise the table setting is ignored.
#
# innodb_file_per_table = 1 MUST be set in my.cnf for compression to work.

RaVbaker

Redirect All Requests To Index.php Using .htaccess

In one of my pet projects, I redirect all requests to index.php, which then decides what to do with it:

Simple Example

This snippet in your .htaccess will ensure that all requests for files and folders that does not exists will be redirected to index.php:

RewriteEngine on

RewriteCond %{REQUEST_FILENAME} !-d

them0nk

#Model 

@user.should have(1).error_on(:username) # Checks whether there is an error in username 
@user.errors[:username].should include("can't be blank")  # check for the error message 

#Rendering
response.should render_template(:index)

#Redirecting 
response.should redirect_to(movies_path)

pgr0ss

require 'stringio'

rack_app = Proc.new do |env|
  body = env.map {|k,v| "#{k} => #{v}"}.join("\n")
  [ 200, {"Content-Type" => "text/plain"}, StringIO.new(body)]
end

run rack_app